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[Bug target/41680] [4.4/4.5 Regression] ICE in trunc_int_for_mode
- From: "jakub at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 12 Oct 2009 13:40:30 -0000
- Subject: [Bug target/41680] [4.4/4.5 Regression] ICE in trunc_int_for_mode
- References: <bug-41680-87@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #3 from jakub at gcc dot gnu dot org 2009-10-12 13:40 -------
Subject: Bug 41680
Author: jakub
Date: Mon Oct 12 13:40:17 2009
New Revision: 152667
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=152667
Log:
PR target/41680
* config/i386/i386.md (split after *testqi_ext_3_rex64): Only narrow
paradoxical subregs to prevent partial register stalls if the inner
mode is integer mode.
* g++.dg/torture/pr41680.C: New test.
Added:
branches/gcc-4_4-branch/gcc/testsuite/g++.dg/torture/pr41680.C
Modified:
branches/gcc-4_4-branch/gcc/ChangeLog
branches/gcc-4_4-branch/gcc/config/i386/i386.md
branches/gcc-4_4-branch/gcc/testsuite/ChangeLog
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41680